2024
DOI: 10.1002/adfm.202316519
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Enhanced Piezoelectric Energy Harvester by Employing Freestanding Single‐Crystal BaTiO3 Films in PVDF‐TrFE Based Composites

Ruobo Peng,
Butong Zhang,
Guohua Dong
et al.

Abstract: Advancements in wearable electronics and Internet of Things (IoT) sensors have catalyzed the need for effective micro‐energy harvesting. Piezoelectric nanogenerators (PENGs) are ideal due to their high conversion efficiency and durability. However, the contrast between the high piezoelectric coefficients of brittle inorganic ceramics and the  lower coefficients of superior flexibility and biocompatibility of organic polymers poses a significant challenge. This work introduces a novel multilayer composite PENG,… Show more

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Cited by 21 publications
(1 citation statement)
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“…Mechanical energy widely spreads in nature, industrial activities, and human bodies and can be harvested via triboelectric, piezoelectric, and even electromagnetic effects. Though inorganic piezoelectric ceramics and crystals usually have much higher electroactivity than piezoelectric polymers, the latter, represented by poly­(vinylidene fluoride) and its copolymer with trifluoroethylene (P­(VDF-TrFE)), possess their own advantages of ease to fabrication, chemical stability against environmental degradation, biocompatibility suitable for long-term wear and implantable devices, and flexibility to conform to the human body or integrate seamlessly into flexible electronic devices, and have been developed to harness ambient mechanical energy from varieties of sources such as human motion, vibrations, and wind to power wearable devices.…”
Section: Introductionmentioning
confidence: 99%
“…Mechanical energy widely spreads in nature, industrial activities, and human bodies and can be harvested via triboelectric, piezoelectric, and even electromagnetic effects. Though inorganic piezoelectric ceramics and crystals usually have much higher electroactivity than piezoelectric polymers, the latter, represented by poly­(vinylidene fluoride) and its copolymer with trifluoroethylene (P­(VDF-TrFE)), possess their own advantages of ease to fabrication, chemical stability against environmental degradation, biocompatibility suitable for long-term wear and implantable devices, and flexibility to conform to the human body or integrate seamlessly into flexible electronic devices, and have been developed to harness ambient mechanical energy from varieties of sources such as human motion, vibrations, and wind to power wearable devices.…”
Section: Introductionmentioning
confidence: 99%